Yeah, this is true for the large majority of martial arts dojos you will find out there. Especially in the west. In the west, I would say well over 90% of all dojos are teaching complete BS. I suppose it might be a decent physical work-out, but it's worthless in an actual fight.
If you can't go with something real like a BJJ, Krav Maga or find something really authentic out there, your best bet would be to go with Tae-Kwon-Do. TKD is still crap in a fight, but at the very least they spar a lot, and sparring is something that has some serious value to it. Sparring teaches you to move under pressure, and some of the more authentic traditional styles tend to skimp on the sparring end a bit. So, it's good to have that in your background to compensate for that fact.
TKD is also a better physical work-out than the other martial styles and works a lot on your lower body strength which always translates well to other styles. Both of these things will serve you very well later on if you manage to find a dojo to teach you some REAL martial arts after you've managed to do some more research.